I don't have a dog. I live in a new build estate where fences at front gardens are not allowed. Every day the neighbours dog poos in my garden. We have only lived here since March and the neighbours are very nice. This has been happening for about a month. 2 weeks ago I went to the door. They apologised profusely and it stopped for a few days. For the past 4 days it's happened again. I've just been to the door again. They let their dogs just wander about the cul design sac shitting in my garden. What can I do?